Ore crusher and pulverizer.



No. 703,46I. Patented luly I, |902.

- A. J. PETTER.

OBE CBUSHEB AND PULVERlZER.

(Application filed Aug'. 22, 1900.)

(N0 Model.)

- prospecting purposes,

UNITED STATES PATENT OFFICE.

ORE CRUSHLE'R'AND PU LVERIZER.

SPECIFICATION forming part of Letters Patent No. 703,461, dated July 1,1902.

Application filed August ZZ, 1900. Serial No. 27,715. (No model.) y

To a/ZZ whom it may concern:

Be it known that I, ADoLP'H J. PETTER, a citizen of the United States,residing in the city and county of San Francisco, State of California,have invented certain new and useful Improvements ink Ore Crushers andPulverizers; and I do hereby declare the following to be a full, clear,and exact description of the same.

The presentinvention relates to a certain new and useful ore crusher andpulverizer for use in connection with laboratories or for prospectingpurposes; and it consists in the arrangement of parts and details ofconstruction, as will be hereinafter fully set forth in the drawings,and described and pointed out in the speciiication.

The objects had in View are to provide a simple and eifective machinewhich may be readily transported from place to place and by means ofwhich the ore maybe either crushed or pulverized or by means'ofvwhichthe combined action of crushing and pulverization of the ore may beobtained, to provide a chine especially adapted for laboratory or and toprovide a mav chine which may be readily taken apart and its wearingparts readily adjusted to compensate for wear.

In order to comprehend the invention, ref.A erence must behad to theaccompanying sheet of drawings, wherein- Figure 1 is a verticalsectional view of the machine in side elevation; Fig. 2, atopplan viewof the machine; Fig. 3,-a detailview of the die or wearing ring, andFig. 4 a similar view of the trough lfor receiving the discharged ore.

In the drawings the letter Ais used to indicate the base or platformupon which the machine rests or is supported. To this .base or platformis secured, by nut a, the vertically-extending spindle A2, which spindleat its upper end carries the cone-shaped crushing-head B. Integrallysecured to the head B is a depending convexed or spheroidal shell B,which shell at its lower edge is provided with the inturned dependingiange B2. This iiange B2 rests upon the upper face of the base orplatform A and serves as a support for the convexed or spheroidal shellB'. In the present instance the head B and the shell B are secured tothespindle A2 through the medium of a screwfthreaded connection A3. Insteadof vforming the head and shell integral, as hereinbefore described, itwill be obvious that such members may be formed independently, in whichevent the head will be provided with a lower reduced portion ct,adaptedv to fit a hub or enlarged portion b on the shell, the two beingrigidly secured to-l gether by means of a nut B3. (All shown in dottedlines, Fig. 1.) The stem A2 may in some instances be formed integralwith either the head or shell. Over the shellB is fitted the concavedshell C, which shell is formed with an upwardly-inclined hopper C'. Theshell C eX- tends slightly below the center @tof the shellB', and thisportion of the shell is slightly oiset, as shown at d, in order toprovide a seat d' for the die or wearing ring C2. This die or wearingring is a split one and is held in place by the upturned iianged end d2of the adjustingbolts C3, which bolts pass through the offset portion dofshell C. The adjusting-bolts are held invplace by the nuts g, securedupon the screw-threaded portions thereof. It will be observed that'theupper edge g' of the die or wearing ring is formed at an incline inorder to correspond with the inclination of the offset portion of theshellC and permit of the ring registering therewith. The face of thisring belowthe center line of the shell B' is made straight, as shown atg2; soasto permit o'fthe shellC oscillating upon shell B withoutbinding, which otherwise it could not do, as'thediameter of shell C atits lower edge would'be lessthan that of shell B at w.

The shell C is held upon shell B by means of the spider E, the arms 1 23 of which engage the upper edge of hopper C'. The spider fits looselyupon the stem E', screwed into and upwardly projecting from head B, andis held down by spring E2, which spring surrounds the stem E and is andcollar F. There is interposed between the spring and collar F a washerF/, which washer is held to the collar by a swivel con.- nectionf. Thecollar is provided with the upwardly-extending slotted shoulders f',between which work the eccentric cams F2; These cams bear upon collar Fand are connected to the bifurcated end of lever F3. This leverstraddles the upper end of stem E and is held between the spider IOOheld in place by the bolt f2, which bolt passes through the slottedshoulders f of collar F and rests within the inclined sloth, cut in theupper end portion of stem E'. By means of this cam-leverthe spring Eziscompressed orreleased. The arms l 2 of the spider are slightly shorterthan arm 3. Consequently the hopper C stands eccentrically to the headB. Being thus held, a gyratory motion is imparted to the hopper C andits shell C as the hopper is rotated. To the hopper are connected thearms G, the ianged ends 7L ofwhich twithin the sockets h2 of the hopper.

Within the inner face of the hopper are formed a series of verticalgrooves 7c, within each of which is fitted a rib 7c. A series ofvertical grooves 7a2 are formed in the face of the head B, and in eachgroove is itted arib 7c3. It will be understood that the face of thehopper and of the head may be corrugated, if so desired; but I preferthe inserted ribs, as they may be removed at any time in case ofexcessive wear and new ones inserted in lieu thereof".

The ore fed into the hopper is crushed by being pressed against thecone-shaped head during the gyratory motion of the hopper, which isactuated in the present case by the operator exerting pressurealternately upon the handles or arms G. As the ore is crushed or brokenit gradually works downward toward the shells and passing therebetweenis gradually pulverized bythe action of shell C upon shell B. Asdischarged from between the shells it falls into the ore-receivingtrough K, located thereunder.y This trough is circular in form and thefree ends thereof overlap. Preferably the trough is made vof rubber; butthis is immaterial, as the same may be made of any suitable material.

In case of wear upon the die-ring it is only necessary to remove thesame from` its seat and file or cut away a portion thereof at its joint.This shortens or reduces the length of the ring, and hence its diameter,when joined or forced together by being drawn to its seat by theadjusting-bolts.

To remove the upper-shell and hopper, the cam-lever is thrown upward andthen drawn outward in order to remove its transverse pin or bolt fromwithin the slot of stem E'. \Vhen thus released, the spider andconnecting parts maybe lifted olf the said stem. The hopper and itsshell are then free to be raised from off of shell B.

Having thus described my invention, what I claim as new, and desire tosecure protection in by Letters Patent, is-

l. In an ore crusher and pulverizer, the

combination with the cone-shaped crushingsecuring the same to the themachine, a spheroidal and depending from the inclined hoppersurroundhead, of means for base or platform of shell secured tocrushing-head, an

ing the crushing-head, means by which a g fratory motion is imparted tosaid hopper, a spheroidal shell'depending from the hopper, which shellsurrounds and works upon the shell of the crushing-head, a die-ringhaving a smooth periphery secured to the inner face of the outer shellat its lower edge, and of devices for adjusting the die-ring.

2.. In combination substantially as described, superposedcrushing-shells one of the same having an offset portion adjacent itslower end, a wear-ring inserted in said oiiset portion from the lowerend of the shell having a smooth surface disposed toward said osetportion, and means for adjusting the ring.

3. In combination, substantially as described, superposed Crushers, oneof the same having an offset portion having an inclined upper wall, asplit wear-ring inserted in said offset portion having acorrespondingly-inclined upper edge, and means for causing the inclinesof the ring and offset portion to engage and adjust the ring relative tothe grinding-surfaces.

4:. In combination, substantially as described, a head; a shelldepending from the head; a second shell mounted on the outside of saidfirst-mentioned shell; and means for regulating the pressure of oneshell upon the other comprising a stem 011 the head, a spider slidableon the stem engaging the edges of said outer shell, a spring bearingupon the spider, and a cam-lever at the end of the stem bearihg upon thespring.

5. In combination, substantially as described, a head; a shell dependingfrom the head; a second shell on the outside of said first-mentionedshell; and means for regulating the pressure of one shell upon the othercomprising a stem on the head, a spider slidable on the stem engagingthe edge of said outer shell, a spring seated upon the spider, aswivel-bearing for the upper end of the spring, and means at the end ofthe stem adapted to press upon the swivel-bearing.

6. In combination, substantially as described, a head; a shell dependingfrom the head; a second shell on the outside of said first-mentionedshell; and means for regulating the pressure of one shell upon the othercomprising a stem on the head, a spider slidable on the stem engagingthe edge of said outer shell, a spring seated on the spider, a bearingfor the upper end of the spring, slotted ears on the bearing, and acam-lever atthe end of the stem working in the slotted ears adapted topress upon the spring-bearing to tension the spring.

In witness whereof I have hereunto set my hand.

ADOLPII .I. PETTER. Witnesses:

N. A. AoKER, D. B. RICHARDS.

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